This car DVR integrated with radar detector, which is a 2-in-1 720P Dash Cam Radar Speed Detector. It detects full frequency, including X,K,KA,L Band; it also records 720P videos, supports loop recprding and G-sensor for file lock. The best solution for choosing for millions of car DVRs and radar detectors.   Features: RADAR DETECTOR: The laser detector can detect full frequency, including X,K,KA,L Band. As soon as the signal detected, the build-in speaker of DVR will sound beeping. This will remind the driver reduce the speed when hearing the voice.  Mute Button: The mute one exclusively offered by Aisino. If you disturbed by the sound, you can press the “volume -” key for 3 seconds, until you heard reminding "Voice off". Or press this key 1 second, lower the sound. The “volume -” key which looked like a "book", you can refer the mute button by the forth picture.  SENSITIVITY G-SENSOR: When you opened the G-sensor function, it will save the accident video and lock the file automatically. The file cann’t be covered and it will be the most useful evidence for the traffic accident.  LOOP-CYCLE RECORDING: When the capacity of the SD card is full, the camera will cover the earlier recorders and delete the files from oldest to newest and record continuous.As for how to transport the saved video file to your personal computer: pull out the SD card from the dash camera, insert it to the card reader, then plug the card reader into the computer's USB port.  Specifications: Model: 8500EN;  Video Resolution: 720P;  Screen: 2.0 inch;  Built-in MIC: Support;  G-sensor: Support;  Battery: 3.7V/100mAh;  Language: English / German/ Japanese / Korean / Russian / Spanish / Italian / French / Portugal;  TF Card: Support up to 32GB (NOT included);  Package size: 15 * 13 * 5cm / 5.9 * 5.1 * 2.0in;  Weight: 308g / 10.8oz;   Package List: 1 x 2-in-1 Car Dash Camera;  1 x Car Charger;  1 x Bracket for Mounting;  1 x User Manual